UnitedHealth to buy DaVita primary care unit for $4.9 billion

(Reuters) - The largest U.S. health insurer UnitedHealth Group Inc will buy DaVita Inc's primary and urgent care services for $4.9 billion in its second acquisition this year to expand its fast-growing medical group, it said on Wednesday.

(Reuters) - The largest U.S. health insurer UnitedHealth Group Inc will buy DaVita Inc's primary and urgent care services for $4.9 billion in its second acquisition this year to expand its fast-growing medical group, it said on Wednesday.